Influence of SiC Nanowires on the Damage Evolution of SiCf/SiC Composites
Source abstract
Abstract
SiC fiber (SiC f )/SiC composites were modified by SiC nanowires (SiC nw ) grown in-situ on SiC fiber to obtain hierarchical structure. Effects of this hierarchical structure on the properties of composites, such as microstructure, fracture strength and damage evolution, were evaluated. Results show that the introduction of SiC nw significantly improves the matrix infiltration efficiency. SiC nw and BN-coated SiC nw reinforced SiC f /SiC composites acquire better performance in bending tests by comparison with conventional SiC f /SiC. SiC nw coated by BN interphase obviously enhances the strength owing to weak-bonded interface. Besides, results of acoustic emission and Coated Vickers Hardness Impresses reveal that SiC nw delay early damage evolution at early state and mainly make contribution to hindering and bridging of microcracks, which is further enhanced by BN-coated SiC nw .
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (18)
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